Baking-oven



2 Sheets-Sheet l.

PatentedMar. 22,- 1887.

J. JUNKEB.

BAKING OVEN.

(No Model.)

N. PETERS, Phuwmm u mr. Waahingmm D. c.

(No Model.) 2 Sheets-Sheet 2.

J. JUNKER.

BAKING OVEN.

No. 359,789. Patented Mar. 22, 1887.

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JULES J UNKER, ()F PHILADELPHIA, PENNSYLVANIA.

BAKlNG SPECIFICATION forming part of Letters Patent No. 359,789, datedMarch 22, 1887.

Application filed August 510, 1886.

To rule? whom it may concern.-

Be it known that I, JULES JUNKER, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and usefulImprovement in Baking- Ovens, which improvement is fully set forth inthe following specification.

This invention has reference to ovens for baking bread, and relates moreparticularly to the construction of the frame for the oven door and themeans for illuminating the interior of the oven.

Heretofore ovens have been provided with a largelight built into thewall on the side opposite the fire, (when the fire-place was constructedto open into the oven,) and a spe cial framework for the light was ofcourse necessary, the brick-work being built around it. In buildingovens after this plan great difficult-y was experienced in fitting theseparate frames for the doors and illu minators into the masonry so asto make the joints tight all around and sufficiently strong to standwear and tear and rough usage. Moreover, with a singlelargclight(usuallyatwelvefootburner) the mica sheet soon became blackened with thesmoke, the aperture was too large to make a tight joint with the micasheet, and, besides, the side of the oven away from the light was poorlyilluminated.

The present invention is designed to overcome these difficulties andotherwise to improve the construction of the oven and the illuininatorstherefor.

According to this invention the frame for the light or lights, insteadof being separate and separately bricked in, is made part of theframe-work surrounding and supporting the oven-door, so that the wholeconstitutes one structure. It is a comparatively simple and easy matterto build the masonary around this single frame, and a much better workproduced. Preferably there are two lights-one on each side of theoven-door-whereby with much smallerburners the oven is betterilluminated than heretofore and the size of the opening can be reducedone-half, so that a single sheet of mica can be used and a tight j ointmade. The windows require frequent cleaning and the lights have to heoften handled. When the light was set into the wall, it was difficultand Serial No. 211,409. (No model.)

inconvenient of access. By the construction herein described access tothe lights and windows is easily had.

The present invention includes certain de- 5 tails of construction andcombinations and arrangements of parts, as hereinafter pointed out.

In the accompanying drawings, which form a part of this specification,Figure'I is a front elevation of the furnacedoor and iron framework.Fig. II is a horizontal section of the same on line II. Fig. III is avertical section through the box or casing of one of the illuminators;and Fig. IV is a horizontal section of the same, Figs. III and IV beingon a larger nator-boxes 8one on each side of the door A- 7 5 form partof the frame-work, the walls of the boxes being at an angle with thevertical plates 1. As shown, the whole framework for the door and twolights form one structure,which can be easily and solidly walled in bythe brick-work 20. The inner end of each box 3 is closed by a micawindow. This consists of a sheet of mica, 4, held between the two partsof a frame, 5, said parts being tightly screwed together. The window,being put in place, is 8 pressed firmly against the turned-in edges ofthe iron box or casing by dogs 6, pivoted at 7 to the sides of the box3. The ends of these dogs which bear against the edges of thewindow-frame are slightly eccentric, so that they can be made to bearwith the degree of pressure requiredto makeatightjoint. Thus there is nolikelihood of a leak at this point. At the same time the window can bereadily re moved for cleaning or forother purpose, it be- 5 ing onlynecessary to turn aside the dogs 6 and remove the frame 5 by taking holdof the button 8, which is provided for that purpose. To insert a freshsheet of mica, when this is necessary, the screws holding together thetwo parts of the frame 5 are removed.

The gas-burner 10 is preferably carried by a jointed bracket, 11, sothat it can be adjusted from place to place and removed when desired.Back of the light is a reflector, 12, which serves also to shade thelight from the eyes of the workman or attendant. The reflectoris hingedtothe framework. It extends not quite to the bottom of the'box 3,leaving an opening below for the entrance of the gas-pipe and foradmission of air to support combustion at the burner 10. The reflectorsare omitted from Fig. I.

Behind the mica window is a shutter, 13, which can be opened and closed,as desired, by the lever 14, connected with the shutter through a link,15. Above the box is a small iron pipe, 16, which curves forward to thefront of the plate 1 and constitutes a flueto carry off smoke from theburner.

It' will of course be understood that where two or more lights are usedthe additional ones will be constructed as above described.

In the accompanying drawings a furnacedoor with two lights-one-on eachside-is shown in Figs. I and II. This is the preferred construction,and, as shown, the boxes are preferably set in the wall obliquely, sothat themica windows are somewhat inclined to the plane of the door.(See Fig. II.)

It has been found that by the construction herein described and shown inthe drawings the oven is much better illuminated with two fourfootburners than with a large twelve-footligh t.

I do not limit myself to the precise details of construction describedand shown, since of mica or like material, for lighting the interior oftheoven, substantially as described. 2. Abaking-oven having thedoor-frame and two boxes for lights-one on each side of: the door-thewhole constituting one structure set into'the brick-work of the oven,substantially as described.

3. The combination, with the oven-door, of the two boxes for 1ights-oneon each side of the doorsaid boxes being. oblique to the plane of thedoor, substantiallyas described.

4. In abakingoven, the combination, with the illuminatonbox having anopening inzthe side toward the oven, said opening being surrounded by aflange, of a frame holdingamica sheet, and pivoted dogs for pressingsaid frame firmly against said flange, making a tight joint, butpermitting removal of the window when desired, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

' J ULES JUNKER: W'itnesses:

FREDK. BREITINGER,

J. CARROLL MCOAFFRAY.

